Hi, as regards the WiFi I discovered that the problem was caused by Asus Smart Gesture driver (for Windows 10 Upgrade).
I solved the problem deleting the WiFi drivers and the Smart Gesture one. Then installing the Asus Smart Gesture (Touchpad driver) and the Broadcom Wireless Lan driver both downloaded from Asus support website: https://www.asus.com/it/supportonly/f555ld/helpdesk_download/
Best regards.